Cookie Policy

• Keep you signed in and maintain secure authenticated sessions.
• Remember anonymous upload state so guest documents can be opened, replaced, or claimed after signup.
• Preserve editor state, document rendering data, and browser-side caches needed for PDF workflows.
• Route you through checkout and subscription management.
• Measure usage, performance, errors, and reliability so we can improve PDF Gain.

• Essential cookies and storage: Required for authentication, security, document access checks, upload sessions, editor functionality, and checkout. PDF Gain may not work correctly if these are blocked.
• Preference storage: Used to remember choices such as language, session state, and interface settings where available.
• Performance and analytics technologies: Used to understand page performance, feature usage, errors, and service reliability. We use these signals to improve the product, not to sell personal information.
• Payment and subscription technologies: Used by Paddle and related checkout services to process purchases, prevent fraud, manage subscriptions, and provide billing support.

• Supabase: Authentication, session handling, and account-related security.
• Paddle: Checkout, payment processing, subscription management, tax handling, and fraud prevention.
• Vercel: Hosting, analytics, speed insights, error and performance signals, and infrastructure reliability.
• Cloudflare R2: Private object storage for uploaded PDFs; document access remains controlled server-side.

• Chrome: Settings, Privacy and security, Third-party cookies or Site settings.
• Firefox: Settings, Privacy & Security, Cookies and Site Data.
• Safari: Settings or Preferences, Privacy, Manage Website Data.
• Edge: Settings, Cookies and site permissions, Manage and delete cookies and site data.

Blocking essential cookies or storage can prevent sign-in, uploads, document editing, checkout, and account features from working.

• Supabase authentication cookies: Essential. Used to keep users signed in and secure authenticated requests. Duration depends on session settings and browser behavior.
• pdfgain_anon_id: Essential local storage. Used to associate guest uploads with the current browser so documents can be opened or claimed after signup. Kept until cleared, replaced, or no longer needed.
• PDF editor caches: Essential browser storage and cache data. Used to render and reopen active PDF documents efficiently. Duration varies and may end when documents expire, are replaced, or browser data is cleared.
• Paddle checkout cookies: Essential payment cookies. Used for checkout, fraud prevention, subscription management, and billing support. Duration is controlled by Paddle and checkout configuration.
• Vercel analytics and speed signals: Performance and analytics. Used to understand page views, speed, and reliability. Duration varies by provider and browser.